Pocket Weather Meter with Backlight

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1 3000 Pocket Weather Meter with Backlight Thank you for purchasing the Kestrel 3000 Pocket Weather Meter. This instrument will measure the following environmental conditions: wind speed wind chill maximum wind gust relative humidity average wind speed heat stress temperature (air, water, snow) dewpoint This instrument also features a data hold function, a backlight, and an automatic power-down function. Every unit is fully tested at our factory for measurement accuracy and waterproof integrity. Revised 07/23/10 INSTRUCTION MANUAL

Kestrel 3000 Pocket Weather Meter 3 OPERATION 1. Slide off cover. 2. Turn on.

Press while holding to scroll through the units of measure. 3. Select operating mode.

Press the left arrow ( ) to scroll through the measurements in reverse order.

(See Understanding the Measurements section for more information.) 5. Hold mode.

2 Kestrel 3000 Pocket Weather Meter 3 OPERATION 1. Slide off cover. 2. Turn on. Press the center button ( ) to turn on the unit. 4. Select the units of measure. Press while holding to scroll through the units of measure. 3. Select operating mode. Press the right arrow ( ) to scroll through the measurements listed below. Press the left arrow ( ) to scroll through the measurements in reverse order. The instantaneous measurements will be displayed. (See Understanding the Measurements section for more information.) 5. Hold mode. Press while holding to hold the measured value on the display. The word HOLD will blink to indicate the Hold Mode. Press while holding to exit the Hold Mode. This mode can be useful for taking measurements when unable to view the display, as within a duct. The Max and Avg Wind Speed Modes will continue to work as usual.

3 Kestrel 3000 Pocket Weather Meter 5 6. Turn on the backlight. Press to activate the backlight for 10 seconds. If or are pressed while the backlight is illuminated, the backlight will remain illuminated for another 10 seconds. Press while the backlight is illuminated to manually turn off the backlight. 7. Turn off. Hold for 2 seconds to manually turn off the unit. The unit will automatically turn off if no buttons have been pressed for 45 minutes. Mode Hint Icons Units of Measure Wind Speed SPd m/s, ft/min, km/h, mph, kt, B Max Gust SPd MAX m/s, ft/min, km/h, mph, kt, B Avg Speed SPd AVG m/s, ft/min, km/h, mph, kt, B Temperature deg C, F Wind Chill chill C, F Humidity r.h. % Heat Stress Index H.I. C, F Dewpoint d.p. C, F UNDERSTANDING THE MEASUREMENTS Wind Speed - average over the previous three seconds. The measurement will be accurate for air flow through the front or rear of the unit. Maximum Wind Gust - maximum 3 - second wind speed since the unit was turned on. Average Wind Speed - average wind speed since the unit was turned on. Temperature - instantaneous temperature of the thermistor, which is located at the end of the long coiled leads in the open cavity below the impeller. The exposed thermistor will respond quickly to changes in temperature when air flows past it. For fastest response, either hold the unit into the wind or wave the unit side to side for 15 seconds. Readings should be taken in the shade. Water and snow temperatures can be taken by hold the unit in the water or snow. Wind Chill - combination of wind speed and temperature, as defined by the US National Weather Service. Wind chill is the effective temperature on a human or animal at low temperatures due to wind speed. Wind chill readings will be the same as the temperature readings above 45ºF or below 3 mph. Relative Humidity - amount of moisture in the air compared to the amount of moisture the air can hold for the given temperature, represented as a percent. Because relative humidity is also a function of the temperature, the response time will be dependent on the temperature response time (see temperature section above). Readings should be taken in the shade.

4 Kestrel 3000 Pocket Weather Meter 7 Heat Stress Index combination of temperature and humidity, as defined by the US National Weather Service. Heat stress is the effective temperature on a human or animal at high temperatures due to humidity. Heat stress readings will be the same as the temperature readings below 70ºF. Dewpoint calculated based on temperature and humidity measurements, as a measure of moisture content in the air. If the dewpoint is very close to the temperature, the air is humid. If the temperature and dewpoint are the same, dew will form. If this happens below freezing, frost will form. MAINTENANCE & TROUBLESHOOTING Environmental Every Kestrel Meter is fully waterproof and floats, and has passed mil-spec drop testing. Storing Your Kestrel Avoid storing your Kestrel where it will be exposed to temperatures below -30 C [-22 F] or above 60 C [176 F] for extended periods of time. Doing so may cause permanent damage. (Note that the inside of a car parked in the hot sun can reach very high temperatures.) Use of the Lanyard and Cover The cover can be captured on the lanyard to avoid loss. First, remove the cord poplock. Then feed the lanyard end through the large opening in the over and out the slot. Replace the poplock on the lanyard. Replacing the Battery When your display becomes dim or disappears, replace the battery. Use a large coin to open the battery compartment. Use only new CR2032 coin cell batteries (available where watch batteries are sold). Wipe the battery clean of any fingerprints and insert the positive (+) pole up, angling the battery downward and pressing it firmly into place. When Replacing the Battery replacing the battery door, be sure to keep the black rubber o-ring seated in the groove on the case back. Why does the Impeller Appear Imbalanced? It is NORMAL for the impeller to oscillate as it comes to a stop. It is NOT imbalanced. Rather, it contains a very small magnet that responds to the earth s magnetic fields. This does not affect the accuracy of the wind speed readings because the magnetic field applies both a braking and an accelerating force which cancel each other. The impeller has been calibrated to provide wind speed readings accurate to within at least ± 3%. High Speed Use After numerous hours of sustained operation over 25 M/S (~49 KT, 90 KM/H, 56 MPH or 4,923 FPM), the Kestrel will lose some accuracy due to wear of the pivot and bearings in the impeller.

5 Kestrel 3000 Pocket Weather Meter 9 Replacing the Impeller You may recalibrate the wind speed readings by replacing the impeller. Press FIRMLY on the sides of the black impeller housing with your thumbs to remove the entire assembly. When inserting the new impeller, be sure the arrow is facing the display side of the unit, and is aligned with the top of the meter. Press on the sides of the housing rather than the Replacing the Impeller center. Taking Accurate Humidity, Heat Stress and Dewpoint Measurements The patented system for measuring relative humidity allows for extremely fast and accurate readings. The sensor is located in the large hole on the rear of the unit. Even extreme and abrupt changes in the surrounding humidity will be measured within several minutes. To test this, place your hand around the rear of the unit. Within several seconds, the humidity will increase dramatically. After removing your hand, the humidity will quickly begin to decrease. Next, place your hand near the rear of the unit and wave the unit back and forth. The humidity will not change because the air flow is diluting the humidity from your hand. This example shows the importance of keeping air flow past the sensor while taking a measurement. If there is no natural air flow past the sensor, wave the unit back and forth. It is also reasonable to lay the unit down on a solid surface for several minutes to allow the sensor to adjust. Sensors & Calibration Kestrel Pocket Weather Meters use precision sensors to measure the environment. These sensors have all been factory calibrated to NIST-traceable standards, and are accurate within the stated specifications at the time of manufacture. The wind is measured with the patented user-replaceable impeller. It is mounted on a sapphire bearing that begins to measure readings in the slightest of breezes. The patented external temperature sensor is mounted on long, coiled leads that help to further isolate the bulb from the case. This ensures that the Kestrel is reading the air temperature and not the case temperature, may be warmer if the unit was in your pocket or warmed by your hand. The patented relative humidity sensor is designed to adjust quickly to abrupt changes in humidity, and maintains this accuracy and speed in extremely low humidity conditions. The RH sensor is located on the back of the unit and is protected by a membrane. DO NOT puncture this membrane. It will damage the sensor and require replacement. For recalibration of the sensors, the unit may be returned to NK for factory calibration. The wind and humidity sensors can all also be field-calibrated. To recalibrate the wind speed, simply replace the impeller. Visit for information on the RH fieldcalibration kit. The temperature sensor does not need to be recalibrated.

Kestrel 3000 Pocket Weather Meter 11 BEAUFORT SCALE The Beaufort Scale is a system for estimating wind force without the use of instruments based on the visible effects of the wind on the physical

The scale was devised in 1805 by the British naval Commander Sir Francis Beaufort (1774-1857) and is still commonly used by mariners.

6 Kestrel 3000 Pocket Weather Meter 11 BEAUFORT SCALE The Beaufort Scale is a system for estimating wind force without the use of instruments based on the visible effects of the wind on the physical environment. The behavior of smoke, waves, trees, etc., is rated on a 13 point scale. The scale was devised in 1805 by the British naval Commander Sir Francis Beaufort ( ) and is still commonly used by mariners. KESTREL POCKET WEATHER METERS WARRANTY Force Description Kts 0 Calm 0 1 Light Air Light Breeze Gentle Breeze Moderate Breeze Fresh Breeze Strong Breeze Near Gale Gale Strong Gale Storm Violent Storm Hurricane 64+ NK does not believe in disposable electronics. We know that Kestrel Meters don t typically lead pampered lives, and we design them for years of performance in tough conditions. Every Kestrel is designed and manufactured at NK s facility in Boothwyn, Pennsylvania, to be the accurate, reliable weather instrument you need for your application. If for any reason you are not satisfied with the performance or operation of your Kestrel meter in the first 30 days, you may return it to your place of purchase for a full refund. We guarantee every Kestrel Pocket Weather Meter to be free of defects in materials and workmanship for a period of FIVE YEARS from their date of first consumer purchase. NK will repair or replace any defective product or part when notified within the warranty period, and will return the product via domestic ground shipping or NK s choice of method of international shipping at no charge. The following shall be excluded from warranty coverage: damage due to improper use or neglect (including corrosion); damage caused by severe or excessive impact, crushing or mechanical harm; modifications or attempted repairs by someone other than an authorized NK/Kestrel repair agent; impeller failure not caused by a manufacturing defect; normal usage wear; failed batteries; and accuracy issues resolvable by recalibration. Recalibration is provided free of charge within thirty (30) days of purchase if necessary. Except for the warranties set forth herein, NK disclaims all other warranties, expressed, implied or statutory, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. Any implied warranties that may be imposed by applicable law are limited to the term of this warranty. In no event shall NK be liable for any incidental, special or consequential damages, including, but not limited to, loss of business, loss of profits, loss of data or use, whether in an action in contract or tort or based on a warranty, arising out of or in connection with the use or performance of an NK product, even if NK has been advised of the possibility of such damages. You agree that repair, and (upon availability) replacement, as applicable, is your sole and exclusive remedy with respect to any breach of the NK Limited Warranty set forth herein. All product liability and warranty options

7 Kestrel 3000 Pocket Weather Meter 13 are governed exclusively by the laws of the Commonwealth of Pennsylvania. Your warranty period will be measured from your date of purchase. The best way to ensure full warranty coverage is to REGISTER your NK product promptly on our website: < We keep your registration information strictly confidential and do not sell it, share it, or use it for anything but productrelated information bulletins (which you may decline receiving). If you do not register and cannot provide proof of purchase, your warranty period will be measured from our date of manufacture, determined by serial number. We request that you contact NK if you feel your product is not working properly. We can often solve product issues by phone or , saving you the time and expense of returning the unit. If we require the product to be returned, we will issue a Return Authorization to expedite the handling of your warranty claim. The Kestrel Pocket Weather Meters are covered by the following patents: 5,783,753, 5,939,645, 6,257,074, and 7,059,170. LIFETIME CUSTOMER CARE WARRANTY NK wants you to be an NK customer for life, so we take care of you even beyond the terms of the above warranty with our Customer Care Program. Trade-in any Kestrel Pocket Weather Meter, no matter the age or condition, and receive a generous discount on the replacement product. Our Customer Care Program applies only as long as we manufacture the product. CALIBRATIONS, CERTIFICATIONS AND SERVICE Every NK product is tested and calibrated before it leaves our factory. We guarantee that it will perform within specifications when you receive it. Each Kestrel comes with a Certificate of Conformity, with the stated specifications for that product on the back. If you feel an NK product is not meeting specs when you receive it, call us and we ll make sure you are operating it correctly. If it still appears that it may be out of spec, return it to us within 30 days of purchase and we will test and recalibrate all values at no charge. Beyond 30 days, we offer reasonably-priced tests, calibration services and N.I.S.T. certified calibrations as well as Kestrel tune-ups. All of our measurements are traceable to the National Institute of Standards and Technology, ensuring the highest level of accuracy. Our primary Calibration Standards are sent for calibration in accordance with N.I.S.T. requirements and based on a regular schedule. Only approved laboratories and N.I.S.T themselves are used for these calibration services. Incoming and outgoing data is supplied with the certificate of calibration. We also offer full factory service on every product we manufacture for as long as we make the product (and as long after as component availability permits). If we can t repair a product, we will offer you a brand-new replacement under our Customer Care Program (even for accidental damage and misuse).

8 Kestrel 3000 Pocket Weather Meter 15 ADDITIONAL INFORMATION What is a Kestrel? The American Kestrel is the smallest North American falcon. Beautiful and highly adaptable, it can be found virtually everywhere in North America. It is unique among falcons for its ability to both hover at very low speeds and dive at very high speeds. Assembled in the USA. The Kestrel 3000 is protected by US Patents 5,783,753, 5,939,645 and 6,257,079. Nielsen-Kellerman reserves the right to change product specifications Kestrel, the Kestrel logo, Pocket Wind, NK and the NK logo are trademarks of the Nielsen-Kellerman Co. Need Help? Our NK Knowledge Center has answers to many common questions, along with tips and tricks for using NK products. It s available 24-7 at For assistance with the installation or operation of your NK product, write techsupport@nkhome.com. For help with an apparent malfunction, or to arrange or inquire about a repair, write repairs@nkhome.com. Or call ( outside of the USA), Monday to Friday, 9 to 5.

Kestrel 3000 Pocket Weather Meter Register

Boothwyn, PA 19061 Phone: (610) 447-1555

9 Kestrel 3000 Pocket Weather Meter Register your Kestrel Pocket Weather Meter online at NIELSEN-KELLERMAN 21 Creek Circle, Boothwyn, PA Phone: (610) Fax: (610) Web:

Pocket Weather Meter with Backlight

2500 Pocket Weather Meter with Backlight Thank you for purchasing the Kestrel 2500 Pocket Weather Meter. This instrument will measure the following environmental conditions: wind speed wind chill maximum